Question

urgente

com o cálculo

calcule o valor de X

Answer 1

x = 15

Teorema de Pitágoras:

9² + 12² = x²

81 + 144 = x²

225 = x²

√225 = x

x = 15

Answer 2

$\large{\begin{array}{l} \rm a {}^{2} = b {}^{2} + c {}^{2} \\ \rm x {}^{2} = 12 {}^{2} + 9 {}^{2} \\ \rm x {}^{2} = 144 + 81 \\ \rm{x {}^{2} = 225} \\ \rm{x = \sqrt{225} } \\ \rm x = 15\end{array}}$